Simplify3D - slowing down the few first layers

[obecny]

How to slow down just the first few layers,
all the layers bright green are printed too fast for such a small model, all the others ok for what I want so I don't want to slow down everything!
but even with slowing down everything the bottom ones stays in green
Screen Shot 2016-01-26 at 18.29.16.jpg
this is my current settings
Screen Shot 2016-01-26 at 18.33.25.jpg
Thank you!